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Estimation of Sea Level Rise on the West African Coasts: Case of Senegal, Mauritania and Cape Verde

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Document pages: 17 pages

Abstract: Theadvent of technology in the world has led to enormous, varying economic andsocial changes. Those changes have influenced the climate balance, which leadsto global temperature rise, hence oceanic expansion and melting glaciers. Thesevarious phenomena caused the variation in the mean sea level. Thus, in thisstudy we have evaluated that variation from the instrumental recordings of thetide gauges available in the region, which led us to choose the tide gauges ofDakar (Senegal), Nouakchott (Mauritania) and Palmeira (Cape Verde). Theanalysis of the tidal series began with the test of presence or absence ofsignificant trends in the series using the Man-Kendall method followed by thedecomposition of these series using the SSA, ARIMA and SLT techniques, whichwould result in the trend, seasonality and residues. The results of thisanalysis show a variation of 1.52 mm year, 4.51 mm year and 20.08 mm yearrespectively for the Dakar, Palmeira and Nouakchott tide gauges.

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